
Sig Sauer M400 Forge Semi-Automatic Rifle 5.56 NATO 16" Barrel
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The Sig Sauer M400 Forge is a precision-engineered semi-automatic rifle built on the proven AR-15 platform. Featuring a forged 7075 T6 aluminum receiver with a matte black anodized finish, this rifle delivers durability and consistent performance in a lightweight package.
Equipped with a 16-inch barrel with a 1-in-7" twist rate, the M400 Forge offers excellent accuracy for a variety of 5.56 NATO and .223 Remington ammunition. The mid-length gas system helps reduce felt recoil and improves reliability across different conditions.
This California-compliant configuration includes a Magpul MOE fixed stock and pistol grip with a California-compliant fin for legal compliance. The included Romeo-MSR Gen II 2 MOA red dot optic provides quick target acquisition right out of the box.
Additional features include a 15-inch M-LOK handguard for accessory mounting, a Picatinny rail for optic mounting, and the TriggerTech two-stage flat blade trigger for a crisp, consistent pull.
- Caliber: 5.56 NATO (also accepts .223 Remington)
- Barrel Length: 16 inches with 1-in-7" twist rate
- Action: Semi-automatic with mid-length gas system
- Capacity: 10 rounds with one 10-round magazine included
- Includes Romeo-MSR Gen II 2 MOA red dot optic
- California compliant configuration
| MPN | RM400-556N-16B-FORGE-CA |
| UPC | 798681744138 |
| Brand | Sig Sauer |
| Model | M400 |
| Action | Semi-Automatic |
| Finish | Matte Black Anodized |
| Safety | Standard AR Safety |
| Sights | Romeo-MSR Gen II 2 MOA Red Dot Included |
| Caliber | 5.56 NATO |
| Capacity | 10 Rounds |
| Youth Rifle | No |
| Barrel Length | 16" |
| Rate of Twist | 1-in-7" |
| Overall Length | 35.5" |
| Thread Pattern | 1/2x28" |
| Magazines Included | 1 |
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